<?php
/*
 * author:pipistrll
 * email:appyouxiang@163.com
 */
class SotherController extends Controller {
    public function actionCheckimage(){
            ob_clean();
    header("Content-type: image/png"); 
    $im = @imagecreatetruecolor(50, 20) or die("建立图像失败"); 
    $background_color = imagecolorallocate($im, 255, 255, 255); 
    imagefill($im,0,0,$background_color); 
    $border_color = imagecolorallocate($im,200,200,200); 
    imagerectangle($im,0,0,49,19,$border_color); 
    for($i=2;$i<18;$i++){       
        $line_color = imagecolorallocate($im,rand(200,255),rand(200,255),rand(200,255)); 
        imageline($im,2,$i,47,$i,$line_color); 
    } 
    $font_size=12; 
    $Str[0] = "ABCDEFGHIJKLMNOPQRSTUVWXYZ"; 
    $Str[1] = "abcdefghijklmnopqrstuvwxyz"; 
    $Str[2] = "01234567891234567890123456"; 
    $imstr[0]["s"] = $Str[rand(0,2)][rand(0,25)]; 
    $imstr[0]["x"] = rand(2,5); 
    $imstr[0]["y"] = rand(1,4); 
    $imstr[1]["s"] = $Str[rand(0,2)][rand(0,25)]; 
    $imstr[1]["x"] = $imstr[0]["x"]+$font_size-1+rand(0,1); 
    $imstr[1]["y"] = rand(1,3); 
    $imstr[2]["s"] = $Str[rand(0,2)][rand(0,25)]; 
    $imstr[2]["x"] = $imstr[1]["x"]+$font_size-1+rand(0,1); 
    $imstr[2]["y"] = rand(1,4); 
    $imstr[3]["s"] = $Str[rand(0,2)][rand(0,25)]; 
    $imstr[3]["x"] = $imstr[2]["x"]+$font_size-1+rand(0,1); 
    $imstr[3]["y"] = rand(1,3); 
    $str = '';
    for($i=0;$i<4;$i++){ 
        $text_color = imagecolorallocate($im,rand(50,180),rand(50,180),rand(50,180)); 
        $str .= $imstr[$i]["s"];
        imagechar($im,$font_size,$imstr[$i]["x"],$imstr[$i]["y"],$imstr[$i]["s"],$text_color); 
    } 
    Yii::app()->session['yztpcheck'] = $str;
    imagepng($im); 
    imagedestroy($im); 
    }
}
?>